Sincerious

Sincerely serious.

I am sincerious when I tell you that I am horribly sorry I killed your dog, it was an accident!

by Jody Carlisle November 8, 2010

Sinead

Sineads are a type of girl who some people will like and others wont. she is amazing and friendly and usually very athletic. Sineads are usually small but good fun and have a good sense of humor. they are good at everything they try, especially sports. People tend to talk about her behind her back but she doesnt let it get to her. sineads seem to hit rock bottom more than anyone else but they get back up again.

'Wow, i met this girl today, she was so good at sports and laughed at everything. i think i'm in love!'
'I bet her name is Sinead.'
'How did you know?'

by hiiiiiiiii1234 December 14, 2019

sinenhlanhla

A name usually given to a strong, courageous and intelligent person who is also a hard worker. Beautiful in and out. I Stan Sinenhlanhla they’re royal.

I Stan Sinenhlanhla

by Sinenhlanhla November 23, 2021

gang gang since potty train

born a gangster

aye don't be messin with Tyrone hes gang gang since potty train

by sam5106 December 20, 2018

SiNeR

Noun.

1337 gunbound/neopet hacker who began his hacking career in the year of 2004. He later was introduced to many other hackers such as Cao of HP and Zach of Mike's Aimbot. From there he learned to program and dominated the hacking world with his 1337(elite) skills. He currently resides at www.neocodex.us and www.unlimitedMGA.com

See 1337.

ONG!? 4r3 U r311y t3h S1N3R???!!11

by Sina Akbari May 8, 2005

Siner

A name. Often an alias or a nickname. Sounds very badass. Often mistaken with "sinner", but has no connection.

Guy 1: "yo, you heard of that new guy Siner?"
Guy 2: "yeah, he seems pretty chill."

by Siin August 15, 2016

Sinead

a sexy blonde who is soon to be famous, doesnt mind a bit of cock now and again

i wish i could be like sinead!

by thebitch123 November 11, 2010